A024842 - cp's OEIS frontend

A024842 a(n) = least m such that if r and s in {1/2, 1/4, 1/6, ..., 1/2n} satisfy r < s, then r < k/m < (k+2)/m < s for some integer k.

n	a(n)
2	11
3	29
4	55
5	89
6	131
7	181
8	253
9	323
10	417
11	505
12	621
13	727
14	865
15	989
16	1149
17	1291
18	1473
19	1633
20	1837
21	2053
22	2243
23	2481
24	2731
25	2949
26	3221
27	3505
28	3751
29	4057
30	4375
31	4649
32	4989
33	5341
34	5643
35	6017
36	6403
37	6733
38	7141
39	7561
40	7993
41	8363
42	8817
43	9283
44	9761
45	10169
46	10669
47	11181
48	11705

[11, 29, 55, 89, 131, 181, 253, 323, 417, 505, 621, 727, 865, 989, 1149, 1291, 1473, 1633, 1837, 2053, 2243, 2481, 2731, 2949, 3221, 3505, 3751, 4057, 4375, 4649, 4989, 5341, 5643, 6017, 6403, 6733, 7141, 7561, 7993, 8363, 8817, 9283, 9761, 10169, 10669, 11181, 11705]

cp's OEIS Frontend

A024842 a(n) = least m such that if r and s in {1/2, 1/4, 1/6, ..., 1/2n} satisfy r < s, then r < k/m < (k+2)/m < s for some integer k.

Table of values

List of values